Io ho una HP PSC 750 e anche io non riuscivo ad installarla, poi navigando ho trovato un forum du Ubuntu in cui veniva spiegato il procedimento e per magia è partita

. Ti copio il testo inglese:
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<BR>This has been a problem in every distro that I have tried. I finally found a way to make it work without to much hassle.
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<BR> The 1st thing that needs to be done is configure the scanner. To do this you´ll need hpoj.
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<BR> Open a terminal window and using a editor such as pico
<BR> sudo pico /etc/apt/sources.list
<BR> Uncomment the 2 lines for universe
<BR> Save file CTL O
<BR> Close pico CTL X
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<BR> sudo apt-get update
<BR> sudo apt-get install hpoj
<BR> After downloading and installing it will start ptal-init install
<BR> When ask if you want to scan the parallel ports answer NO
<BR> When ask if you want to scan the usb ports answer YES
<BR> Just choose the defaults for the rest of the questions.
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<BR> If you know open xsane or what ever scanner frontend you prefer you should be able to scan.
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<BR> Close the scanner program of your choice
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<BR> Reboot the machine - in theroy this should be needed but in my experience if you don´t the printer won´t work.
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<BR> Log back in as the same user as before
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<BR> Computer/System Configuration/Printing
<BR> New Printer
<BR> Use a detected printer ( the PSC-750 should be listed) highlight it.
<BR> Forward
<BR> Manufacturer HP
<BR> Model PSC 750
<BR> Default driver is OK
<BR> Apply
<BR> You should now have the newly installed PSC-750 show up under printers and you are ready to print.
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<BR> Using thie procedure I have been able to get the printer and the scanner to work together as they are suppose to.
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<BR> Not having any other PSC printers to try I would have to guess that the above would work for about any PSC-xxxx printer from HP as long as there are drivers for it in Ubuntu (Linux)
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<BR>Questo è l´URL originale

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http://ubuntuforums.org/showthread.php?t=6571
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<BR>See ya^^.<br>